If you have some good insulation and heating in it, it might be ok. Next to a woods a wood burner would be perfect and free fuel
I have a friend who works for Apple, earns something like 120k a year. They are considering selling their flat and living in a luxury camper. If you don't care about owning property why not tbh. If you can earn that much and work remotely, just go and live on a campsite somewhere warm for peanuts.
I'm considering it.
I will need to sell the house and buy a rental. As obviously at some point it will become a chore.
But I'm not really "happy" in this normal life. Being stuck in one place.
The wanderlust is very real. I love to explore. And any place for me gets boring after a while.
For example I've never camped in the same spot twice so far.